Patents by Inventor Jamal N. Hamdar

Jamal N. Hamdar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for making skid resistant moisture barriers
    Patent number: 7459180
    Abstract: Skid-resistant moisture barriers of the invention, such as house wrapping, waterproofing membranes, and roofing underlayrnents, have a carrier sheet with polymer nodules deposited thereon through a rotating screen roll or by transfer means such as a gravure roll. Precise coating levels and polymer distribution can be achieved more easily when compared with prior art coating and embossing methods.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: December 2, 2008
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Jamal N. Hamdar, Russell A. Victoria, Carmen J. Melillo, Jyoti Seth, James R. Hansen, Robert Sorrentino
  • Skid resistant moisture barriers and process for making same
    Publication number: 20030215594
    Abstract: Skid-resistant moisture barriers of the invention, such as house wrapping, waterproofing membranes, and roofing underlayrnents, have a carrier sheet with polymer nodules deposited thereon through a rotating screen roll or by transfer means such as a gravure roll. Precise coating levels and polymer distribution can be achieved more easily when compared with prior art coating and embossing methods.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 20, 2003
    Inventors: Jamal N. Hamdar, Russell A. Victoria, Carmen J. Melillo, Jyoti Seth, James R. Hansen, Robert Sorrentino